[HenryLeeII]

Savannah Dowling is a typical 8-year-old girl; much of her protein comes from peanut butter sandwiches.

However, if she wants to bring one to Central Indiana's Pleasant View Elementary School, she has to eat it at a special table in the cafeteria to accommodate one first grader with a severe allergy. Soon she'll have to take her lunch to an area the school is calling the "peanut gallery" so the one child with the peanut allergy isn't affected.

I've always felt that if a person is exposed to what they are allergic to, he/she will eventually develop an immunity to it. So shouldn't that one kid be fed peanut butter for his own good?

[Doctor Stochastic]

I've always felt that if a person is exposed to what they are allergic to, he/she will eventually develop an immunity to it.

It's generally the other way around. More exposure causes more sensitivity.

Another example.

[Ditter]

Allergy treatment consists of giving the person a very small amount of the allergen by injection and over a long period of time they gradually become less sensitive to it.
Food allergies are not treated by this injection method. There is a newer treatment where antigens are dissolved under the tongue. A peanut allergy as severe as this child has might not be treatable this way. Any exposure to peanuts and they likely will die.
I only know one person who has a severe peanut allergy and she is over 50 now. So much for it never happening until lately.